Bleeding 1 week after ending period + Positive test

Hi everyone, I’m really confused and wondering if any one has experienced something similar.

Here’s my timeline:

I ovulated around February 6 and had intercourse that day.

I tested around 13 days after I ovulated and it was negative.

My period started exactly when it was due at 14DPO (day after negative) and that was about 2 weeks ago and it was like a normal period.

After that:

My period lasted 6-7 days and I had intercourse the day after my period ended (last week).

Yesterday I started having bleeding again like a start of a period, which is strange for me because my period had ended about a week ago.

The bleeding now is:

Bright red

Mostly noticeable when I pee or wipe

Some streaks/stringy blood

My pad only has light spotting

No cramps

Because it felt strange, I took a pregnancy test today and it came back clearly positive with a dark line, which really shocked me.

Now I’m confused about what could be happening because:

If the pregnancy is from ovulation around Feb 6, I don’t understand how I had a normal period after.

If it’s from intercourse last week, the test seems way too dark to already be positive.

So I’m wondering if this could be:

bleeding in early pregnancy

a chemical pregnancy

or if my last “period” wasn’t actually a real period.

Has anyone experienced something like this where they had a period, then a positive pregnancy test shortly after with bleeding?

I’m planning to call my doctor but would really appreciate hearing similar experiences.